# Next.js Hydratation error app router

**URL:** <https://forum.builder.io/t/next-js-hydratation-error-app-router/16039>\
**Category:** Technical Questions\
**Created:** [December 17, 2025, 3:27pm UTC](https://forum.builder.io/t/next-js-hydratation-error-app-router/16039 "2025-12-17T15:27:56Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![matuskocian](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@matuskocian](https://forum.builder.io/u/matuskocian)\
**Post date:** [December 17, 2025, 3:27pm UTC](https://forum.builder.io/t/next-js-hydratation-error-app-router/16039/1 "2025-12-17T15:27:56Z")

</div>

Hello, currently in dev mode i am recieving errors regarding ssr. I am using newest next.js version 16.0.10 with latest react. But the problem were also in previous version. Could you please help us with this since its coming from BuilderContent component itself.

I tried follow the example but we had same issues. I have empty page without any components or anything.

 ![image](https://us1.discourse-cdn.com/flex020/uploads/builder/original/2X/b/bc00556c2a141c0f63d33dccdbf8fdd0597d8501.png)

```auto
Call Stack
28

Hide 25 ignore-listed frame(s)
<unknown>
https://react.dev/link/hydration-mismatch
throwOnHydrationMismatch
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (5528:11)
beginWork
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (12383:17)
runWithFiberInDEV
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (984:30)
performUnitOfWork
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (18995:22)
workLoopConcurrentByScheduler
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (18989:9)
renderRootConcurrent
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (18971:15)
performWorkOnRoot
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (17832:11)
performWorkOnRootViaSchedulerTask
node_modules/next/dist/compiled/react-dom/cjs/react-dom-client.development.js (20382:7)
MessagePort.performWorkUntilDeadline
node_modules/next/dist/compiled/scheduler/cjs/scheduler.development.js (45:48)
div
<anonymous>
render
node_modules/@emotion/core/dist/emotion-element-04d85134.browser.esm.js (120:39)
<unknown>
node_modules/@emotion/core/dist/emotion-element-04d85134.browser.esm.js (135:10)
<unknown>
node_modules/@emotion/core/dist/emotion-element-04d85134.browser.esm.js (22:14)
render
node_modules/@emotion/core/dist/emotion-element-04d85134.browser.esm.js (21:38)
jsx
node_modules/@emotion/core/dist/core.browser.esm.js (30:24)
t.render
node_modules/@builder.io/react/src/components/builder-blocks.component.tsx (99:44)
Object.children
node_modules/@builder.io/react/src/components/builder-component.component.tsx (1219:86)
<unknown>
node_modules/@builder.io/react/src/components/builder-content.component.tsx (347:40)
Array.map
<anonymous>
<unknown>
node_modules/@builder.io/react/src/components/builder-content.component.tsx (325:14)
VariantsProvider1
node_modules/@builder.io/react/src/components/variants-provider.component.tsx (110:56)
BuilderContent.render
node_modules/@builder.io/react/src/components/builder-content.component.tsx (321:5)
<unknown>
node_modules/@builder.io/react/src/components/builder-component.component.tsx (1072:41)
<unknown>
node_modules/@builder.io/react/src/components/builder-component.component.tsx (1063:43)
t.render
node_modules/@builder.io/react/src/components/builder-component.component.tsx (1054:27)
RenderBuilderContent
src/components/builder.tsx (32:9)
Page
src/app/[[...slug]]/page.tsx (85:7)

```